Punching-machine.



No. 772,550. PATENTED OCT. 18, 1904.

H. L. ZEIGLER.

PUNCHING MACHINE.

APPLICATION FILED D204 11. 1903.

N0 MODEL.

m n r .m

h All n kw H m l 7 y "I I a. & o o o No. 772,550. 7 PATENTED OCT. 18,1904. H. L. ZEIGLER. PUNOHING MACHINE.

APPLICATION FILED DEG-11. 1903.-

11 SHEETS-SHEET 2.

no MODEL.

'PATBNTED 001'. 1a, 1904.-

No. 772.550. r

H. L. ZEIGLBR.

PUNGHING MACHINE. ALPPLIQATIOK FILED-DEG. 11. 1903.

I 11 sums-51mm 4.

no uomm.

No. 772,550. 0 PATENTED OCT. 18, 1904. I

H. L. ZEIGLER.

PUNGHING MACHINE.

APPLICATION FILED D110. 11. 1903.

N0 MODEL. 7 I 11 BHEETS-SHEET 5.

jfzvezz wt' No. 772,550. 7 PATENTED OCT. 18, 1904.

' H. L. ZEIGLBR.

PUNCHING MACHINE. APPLIOATION FILED 1120.11, 1903.

11 SKEET8SHEET 8.

N0 MODE-2L.

EHHU UUUUUUUUEEE PATENTED OCT. 18, 1904.

H. L. ZBIGLER. PUNGHING MACHINE.

APPLICATION FILED DEC 11 1903 N0 MODEL.

I K V dyzez No.'772,55o. PATENTED OUT. 18, 1904.

I H, L. ZEIGLER.

PUNGHING MACHINE.

' APPLICATION FILED DEC-11. 1903.

N0 MODEL.

11 SHEETS-SHEET 8.

I UNITED STArEs Iatented. October 18, 1904.

PATENT OFFICE.-

HARRY L. ZEIGLER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-FOURTH TO JOHNHUMP-HREY', OF CHICAGO, ILLINOIS.

PUNCHINYG-MAOHINE.

'SPEGIFIQATION forming part of Letters Patent No. 772,550, dated October18,1904. Application filed December 11, 1903. Serial No 184,737. (Nomodel.)

To all whom it may concern:

Be it known that I, HARRYYL. -Z EIGLER, a citizen of the United States,residing at Ohicago, in the county of Cookand Stateof Illinois, haveinvented new and useful Improvements in Punching-Machines, of which thefollowing is a specification.

This'invention relates to improvements in gang punching-machines inwhich a pattern plungers are operatively mounted, each punch beingadapted to have an independent individual action, andlis intendedgenerally for punching rivet and bolt holes in sheet metal and metalplates, and especially in the manufacture of steel ranges and other workin which the perforations are regularly or irregularly disposed.

In the accompanying drawings, Figure 1 is an elevation showing the frontor operating side of the machine. Fig. 2 is an elevation of the oppositeside from that presented in Fig. 1, both Figs. 1 and 2 being viewed inthe direction indicated by the arrows 1 and 2 shown at the left in Fig.4:. Fig. 2 is a sec tional elevation on line 2 'of Figs. 6 and 9,illustrating a pawl-and-ratchet detail. 3 is a plan showingv apunching-pattern or templet and its supportingcarriage resting on-thetop of the machine-frame. Fig. 4 is a plan section on line 4:, Figs.land 7, looking in the direction indicated by the arrow. Fig. 5 is aplan section on line 5, Figs. land 7. Fig. 6 is a plan section onangular line 6, Figs. 1 and 7. Fig. 7 is avertical longitudinal sectionon line 7, Fig. 4. Fig. 8 is a vertical transverse section on line 8,Figs. 1 and 4. Fig. 9 is a vertical transverse section on line 9, Figs.1, 4, and 7'. Fig. 10 is an enlarged sectional elevation of one of thepunchplungers and its actuating mechanism, taken on line 10 of Figs. 8and 12, showing the punch in its raised or normal position. Fig.

Fig. I

11 is a similar view as that of- Fig. 10 with the difference that thepunch is shown in its lowest position and in engagement with the Workand die member. Fig. 12 is a vertical sectional elevation on line '12,Fig. 10. Fig. 13 is a transverse section on line 13, Fig. 10. .Fig. 14is a transverse section through the. pattern-carriage, showing the samein its raised position. Fig. 15- is a similar View showing the carriagein its normal position. A represents the different parts of the mainframe supporting the working mechanism. If necessary, other referencecharacters will be used on minor parts of the frame in clearly locatingcertain mechanical features.

. The machine driving-shaft B is journaled in the companion longitudinalside bars C of the upper part of the frame and has the usual 'powerband-pulleys 4 and 5 mounted on the end projecting from the front sideof the machine, as shown inFigs. 1 and 8. The hand crank-wheel 6 ismounted on the same shaft manually operating the machine when necessaryin setting or adjusting some of the parts. The relative positions of theband-pulleys and crank-wheel are also indicated by dotted circular linesin Fig. 1. -A number of revoluble punch-carrying shafts 7, 8, and 9 areprovided with suitable journal-bearings in the frame in line withdriving-shaft B, which also has a "series of punches mounted thereon.Apinion and is used as a matterlof convenience, in

10 is mounted on the rear end of the driving shaft, Figs. 2 and 1, andwhich in turn engages a pinion 11, mounted on a counter-shaft 12,located at the rear side of the machine and carrying shafts. The shaft12 is journaledin companion brackets 13, bolted to the main frame.

independent from the combined driving and punch-carrying shaft B has apinion let mounted on the rear end thereof and each of which in turnengages one of a corresponding number ofpinions 15, mounted on shaft 12.1111 pinions and gear-wheels are rigidly mounted in their workingposition unless it is otherwise stated:

running longitudinally therewith andat right angles to the driving-shaftand other punch-f;

w Each of the punch-carrying shafts The companion clutch-pinions 16 and17 are loosely mounted on shaft 12. These pinions are set some distanceapart and are engaged by an intermediate gear-wheel 18, Figs. 2 and 4,mounted on a transverse shaft 19, provided with suitablejournal-bearings in the front end of the frame.

A clutch-sleeve 20 is feathered on shaft 12 and is located between thepinions 16 and 17. This sleeve has the usual rotary movement with itscarrying-shaft and also endwise movement in engaging either one of theclutch-pinions or the other, as may be required. The means employed foractuating the clutchsleeve will be hereinafter referred to.

The construction and operation of the punching mechanism will bedescribed next.

A number of cam-wheels 21 are eccentrically and loosely mounted on thedriving-shaft B and the series of punch-carrying shafts 7, 8, and 9. Aneccentric yoke 22 loosely surrounds each of the cam-wheelslbest shown inFig. 7) and is rigidly mounted on the upper end of the punch-stocks 23,which have a "ertical movement in the guide-sleeves 24, the upper endsof which are fixed in the transverse frame-bars D and the lower endsbeing supported in transverse bars 25, bolted to the frame, Figs. 5, 6,7, 10, 11, and 12. Four punches are mounted on each of the four shafts;but it is obvious that a greater or less number may be used, inaccordance with the capacity required in any particular machine. It willalso be understood that the description of one punch mechanism willapply to all, the same reference characters being used on like parts.

A punch 26 is inserted in the lower end of the stocks 23 and isremovably secured therein by a set-screw 27. The female die memhers 28,Figs. 6, 1O, 11, and 12, are removably secured in the die-bars 29,supported on the frame-bars E. A shifting-finger 30 is mounted on thepunch-stocks and projects therefrom through a vertical slot-opening 31in the guidesleeves 24.

A ratchet-wheel 32, Figs. 10 and 11, is used in connection with each ofthe series of camwheels'21. These ratchet-wheels are rigidly mounted onthe driving-shaft B and the shafts 7, 8,and 9 and are set up close tothe cam-wheels, on one side thereof and in position to be engaged by aspring-pressed pawl 32, pivoted, as at a, to the overhanging rim edge 34of the respective cam-wheels. The pawl 33 is provided with a spur 35projecting into position to be contacted by the inner end of a finger 36in looking pawl 33 in its normal disengaged position. (Shown in Fig.10.) This finger is pivoted to the cam-wheels, as at 7), the outerheavier end stopping against a shoulder 37 when in the locking position.The shoulder 37 is formed by cutting out a segmental portion of rim edge34 of cams 21, the outer end of finger 36 being held against thisshoulder by the inturned hook end 39 of a dog 40. This dog is pivoted,as at (Z, to alug 41, formed on the yoke 22, and terminates in theupturned end 42. In the position shown in Fig. 10 the punch is in itshighest normal position.

A punching-pattern or templet 43, Figs. 3 and 7, is secured in atraveling carriage 44, mounted on top of the main frame. This patternconsists of a number of transverse bars 45 and the longitudinalconnecting-bars 46, which may have a regular or irregular formation, inaccordance with the nature of the workthat is, the number and locationof the holes to be punched out. A number of punchtripping pins 47 arerigidly inserted in and project downward from the under side of thepattern in position to contact the upper end 42 of dog 40 as it movesforward. This contact of the pins 47 carried by the pattern has theefiect of rocking the dog 40 on its pivot and releasing the inner end 39thereof from its engagement with linger 36. .In Fig. 10 one of thetripping-pins 47 is shown in position just before contact, all the partsof the punch-actuating mechanism being in their normal position. In Fig.11 the pin 47 has moved on out of contact and the different parts are intheir abnormal position. The operation of bringing about this change inposition is as follows: hen the inner end of dog 40 is released from itslocking engagement, Fig. 10, with the outer end of linger 36, thelatter-will drop away from shoulder 37 and bring the inner end upagainst a stoppin 48 and release the pawl 33 from its normally lockedposition and which is thrown into engagement with ratchet-wheel 32 bymeans of a spring 49 and causes the camwheel 21 to turn with its shaftand bring the high side thereof in contact with the inside bottom ofyoke 22, and thereby impart a downward movement to the punch-stock andforce the punch through the sheet of metal or work 50, as shown in Fig.11. During the rotary movement of the cam wheel or wheels 21 the innerend of dog 40 rides on the exterior rim edge 34 until the cam rollsaround far enough to bring the cut-out edge into position on the normalside, when the inner hook end of dog 40 will drop into the innermostposition and at the proper time reengage finger 36 and force the outerend up against shoulder 37 and the inner end into position against thespur end 35 of the pawl 33 and force the same out of engagement withratchet-wheel 32 against the pressure of spring 49. lt will beunderstood that the high part of the cam-wheels coming in contact withthe upper inner side of the yoke or yokes 22 raises the punches to theirnormal position, the cam-wheels coming to a full stop after eachrevolution and remain at rest until again actuated by a pattern-trippinglinger moving in the path of dog 40.

"he pattern 43, Fig. 3, is removably retained in place, so'that one canbe replaced by another in accordance with the number and particularlocation of the holes, so that any number of patterns may be used incon- 1 nection Wlllll each maclnne.

The view in Fig.

, 3 is in part diagrammatical in showing-the tact and actuate thepunching mechanism, so

thatonly a certain number of the punches are j actuated on each forwardmovement of .the

pattern and the holes located in the work accordingly.

The transverse'shaft 19 carries three sprockets 51, 52, and 53. Thesprocket 51 is mounted on the end projecting from the front sidesprocket 54, mounted on a transverse shaft 55, journaled in the extremefront end of the machine, by a chain belt 56. The sprockets 57 and58-are mounted on shaft 55, adjacent to each end thereof, as shown inFig. 4. The companion sprocket wheels 59 and 60 are mounted on a shaft61, journaled in the frame at the rear end of. the machine, and connectwith sprockets 57 and 58 by chain belts 62 and 63, by which means thenecessary forward-and-back movement of the pattern-carriage is providedfor.

The sprocket. 52 on shaft 19 is in line with a sprocket 64, looselymounted on the upper feed shaft 65, and is connected therewith by achain belt 66. A ratchet-wheel 67 (front side of machine, Fig. 1) isrigidly mounted on feed-shaft 65, adjacent to loose sprocket 64, whichcarries-a pawl 68, positioned to engage ratchet 67 and cause the upperfeed-shaft to rotate on the forward movement. A pinion 69 is alsomounted on the front end of shaft and engages a pinion 70 on thecorresponding front end of lower feed-shaft 71 in transmitting thenecessary forward motion thereto. A sprocket 72 is loosely mounted onthe rear end of the lower feed-shaft 71, Fig. 2 and Fig. 2, and carriesa pawl 73, positioned to engage a ratchetwheel 7 4, mounted on the lowerfeed-shaft, and continues the required forwardmovement of the feed-rollswhen the pattern-carriage is reversed for the return movement. On theforward movement sprocket 64 and ratchet 67 are in operation,-

sprocket 72 on opposite side being idle.

When .the forward /movement is completed and the motion reversed,ratchet 67 is thrown H The means employedfor transmitting motion to thefeed shafts located in the middle and rearend of the machine will benext described.

A sprocket 75 is mounted on the rear end of lower feed-shaft 71 and isconnected with a sprocket 76 by a belt 7 6, mounted on the rear end oflower middle feed-shaft 77, which also-carriesa pinion 78 on the frontside engaging a pinion 79,- mounted on the front end of the. upperfeed-shaft 80. A sprocket 81 is mounted on the front end of the uppermid-. dle feed-shaft and is connected to a sprocket 82, mounted on thefront end of upper rear feed-shaft83 by 'a belt 84. A pinion 85 ismounted on the front end of feed-shaft 83 and engages a companion pinion86, mounted on the. lower feed-shaft 87, in transmitting the requiredmotion The feed-rolls on the different feed-shafts have frictionalcontact with and move the work during the operation of the machine. ofthe machine and is connected with a r A crank-plate 89, Fig. 1, issupported from a bracket and has a turning movement on formed on a plate94 and bolted to the frame. The upper bifurcated end 95 of a rod 96,Fig.

1, loosely engages a pin 97, fixed in an arm 98 of crank 89. The lowerend of rod 96 connects with a horizontal crank-rod 99, runningtransversely and rigidly secured to the first of a number of transverserock-shafts 100. Y. A rock-shaft is employed for each transverse row ofpunches and are indicated by the same reference-numeral, as shown inFigs. 1, 2, 5, and 7.. The rock-shafts 100 are each provided with a bowcam part 101, positioned just in frontof each row of punches. of therock-shafts is provided with a standard 102, the lower end of which issecured to the rear end of the shaft, the freeend extending upward andjust above the line. of the horizontal clutch shifting-rod 103 and inadvance of contacting pins 104, formed on .the rod 103. The clutchshifting-rod has a free endwise movement and is supported in brackets13, in which counter shaft 12 is ijou rnaled. The lower end of a clutcha'rm 105 is mounted on the bifurcated forward end of the shifting-rod103, the upper free end being in engagement with the clutch-sleeve 20,Figs. 2 and 9. One end of a spring 106 I oo Each

is rigidlysecured to the frame, Fig. 9, the free end passing between thebifurcated ends of the clutch shifting-rod and bearing against.

the inner side of the clutch-arm 105.

- The shifting-fingers 30"on the respective punch-stocks project overthe cam parts 101 of the'rock-shafts 100 and inposition to have I a frictionalcontact with the same on the down movement. The object of thisarrangement is to provide means for automatically and periodicallythrowing the clutch-sleeve 20 out of engagement on the forward movementin stopping the work each time that one or more of the punches entersthe same. The down movement of the punch-stocks and the depressingaction of the fingers 30 on the cam parts 101 has the effect of rockingthe shafts 100 and causes the standards 102 to press against pins 104,and thereby impart an endwise movement to clutch-rod 103 and retractsthe clutch-sleeve from its forward engaged position against the pressureof the leaf-spring 106 and momentarily arrests the forward movement ofthe feed-shafts until the work has been perforated and the puncheswithdrawn. When the pressure of fingers 30 is released, the spring 106throws the clutchsleeve into engagement again with clutchpinion l7 andthe forward movement continued, and so on intermittently until all theholes indicated by the pattern have been punched out.

The meehansim employed for returning the pattern and its carriage totheir normal position after the forward movement has been completed willbe described next.

One end of a rod 107, Fig. 1, is connected to the crank-plate and theother end connected to the upper end of a link 108. The lower end ofthislink is mounted on a transverse rock-shaft 109, Figs. 1, 2, and 7,which in turn carries companion curved lifting-arms 110, located atopposite sides of the machine. One end of a rod 111 is connected to thecrankplate 90, the other end being connected to the upper end of a link112, mounted on atransverse rock-shaft 113, located in the front end ofthe machine, Figs. 1 and 7.

The companion curved lifting-arms 114: are mounted on shaft 113 atopposite sides and in line with like arms located in the rear end of themachine. The four curved arms bear against the under side of andadjacent to the respective ends of the inside longitudinal companionguide-bars 115, on which the patterncarriage 4: 1 is loosely mounted,Figs. 14: and 15, showing transverse sections of these parts on the rearside of the machine. The guidebars 115 are provided near each end withdownwardly-projecting bifurcated lugs 116, which straddle pins 117,rigidly secured in the top frame-bars 122. This provides for theverticaladjustment of the bars 115 and prevents a longitudinal movementthereof. The

upper ends of companion fingers 118, Figs.

The strippers 123 are secured along their upper edge to theguide-sleeves 24, the lower free edges curving inward in position tocontact and prevent the work from adhering to and following the upmovement of the punches.

In practical working the hand-lever 92 has three different positions.The locked middle position in Fig. 1 corresponds to the disengagedposition of the clutch-sleeve 20 in Fig. 2. In this position thepattern-carriage and feed mechanism are at rest, the punch-carryingshaft-s being in motion all the time that the machine is being operated.Raising the lever 92 to its highest or second position throws theclutch-sleeve into engagement for the forward movement, motion beingtransmitted to the pattern-carriage and feed-shaft and the punchesautomatically actuated by the contact of the tripping-fingers carried bythe pattern, the forward movement being automatically and momentarilysuspended during the time that one or more of the punches are in thework by means of the mechanism hereinbefore set forth. When the forwardmovement is completed, the lever 92 is shifted to its lowermostposition, which throws the clutch-sleeve into engagement for the returnmovement and at the same time raises the pattern-carriage high enoughfor the tripping-fingers to escape contact with the punch mechanism asit moves back. On the back movement ratchet 67 and pawl 68 are thrownout of engagement, and pawl 73 and ratchet 74, on the opposite side ofthe machine, into engagement and reversing the motion of the sprocketsand chains in transmitting the baek movement to the patterncarriage andat the same time continuing the forward movement of the feed-rolls indischarging the work from the machine before the forward movement isagain initiated.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In a machine of the class described,a nu mber ofcontinuously-revoluble shafts positioned at intervals, a series ofpunches operativel y supported from said shafts, each punch having anindependent action, means for imparting said independent action, andmeans for independently locking said punches in their normal positionafter the return from each down movement, substantially as set forth.

2. In a machine of the class described, a series of punches havingindependent action from each other and disposed in groups, the punchesin each group being in line transversely but set diagonally withreference to the longitudinal dimensions of the machine, whereby amoving object may contact and aetuate one or more punches in one groupand avoid contact with one or more punches in the next group on theforward movement, substantially as set forth.

' zontally, a series of punches carried by said shafts, a travelingpattern. provided with a number of tripping-fingers adapted to engageand impart a downward movement to said punches and duplicate the numberand locationof the perforations in the work in accordance with thenumber and location of the tripping-fingers in the pattern,substantially as set forth.

4. In a machine of the class described ,a num ber of punch-carryingshafts, the cam-wheels loosely mounted thereon a yoke looselysurrounding each cam, the.punch -stocks supported from each yoke, meansfor periodically locking the cams to rotate with the shafts and meansfor releasing the cams from their. locked position at the proper time,substantially as set forth.

5. In a machine ofthe class described,a number of revoluble shafts, aseries of punches mounted thereon in a working position and normally atrest but each having a reciprocating movement independent from that' ofthe others, a traveling pattern and means carried thereby for contactingand initiating a downward movement of one or more punches on eachforward movement of said pattern in accordance with the number ofperforations to be made in the work, means for returning the punches totheir normal position, and

means for locking the same in a stationary position when so returned,substantially as set forth. 6. In a machine of the class described,anumber of revoluble shafts arranged at intervals,

a series of perforating-punches carried by said shafts and positioned ina straight line transversely but diagonally as to a longitudinaldirection, a traveling pattern provided With a number oftripping-fingers, a dog interposed between said pattern and punches andlocking the latter in their normal position and having one end extendinginto the path of said fingers to be tripped thereby in initiating adownward movement of such punches as are indicated by the number andposition of the fingers in the pattern and means for returning thepunches to their normal position, substantially as set forth.

7. In a machine of the class described,a number of revoluble shafts,thecam-wheels loosely mounted on each of the shafts, the eccentric yokesloosely surrounding the cam-wheels the punch-stocks carried by theyokes, the pawls pivoted to the cam-wheels, the ratchet-wheels rigidlymounted on said shafts and positioned to be engaged by' the pawls inimparting a rotary movement to the cam-wheels, a traveling patternindicating the number and position of the holes to be made in the work,and a dog pivotally mounted and free at both ends, one end being inposition to operate the mechanism locking the cam-wheels againstrotation and the other end in position to be tripped by'the movingpattern in initiatinga downward movement of the'punches, su bstan-'tially as set forth.

8. In a machine of the class described, the combination with a revolubleshaft,of a camwheel .looselymounted thereon, an eccentric yoke-looselysurrounding the cam-wheels a punch-stock supported from the yoke, 'aratchet wheel loosely mounted on said shaft, a pawl pivoted to thecam-wheel and positioned to engage the ratchet-wheel, a finger holdingthe pawl in its disengaged position, means for throwing the pawl intoengagement when the pressure of the finger is re laXecLand means forreleasing the finger when the pawl is to engagethe ratchet-wheel androtate the cam-wheel in actuating the punchstock. substantialyas setforth.

9. In a machine of the class described, a

number of punch-carrying shafts, pinions mounted on the 'rear ends ofsaid shafts, a counter-shaft running at right angles thereto the pinionsmounted thereon and engaging the pinions on the punch-shafts intransmitting motion thereto, the companion clutchpinions,the-'clutch-sleeve feathered in the counter-shaft and adapted toengageeither of the clutch-pinions independently and means for manuallythrowing said sleeve into and out of engagement with said clutch-pinionsin changing the direction of motion, substantially as set forth.

10. r In a machine of the class described, the combination with a numberof transverse rockshafts; each provided with a cam part, thepunch-stocks carrying shifting-fingers positioned todepress the camparts on the down movement and rock said shafts, a clutchsleeve, aclutch shifting-rod, and the means interposed between the rock-shaftsand shiftingrod in imparting a longitudinal movement to the latter anddisengage the clutch-sleeve in momentarily stopping the feed mechanismduring the time that the punches are in the work and means forautomatically throwing the clutch-sleeve into engagement when thepunches have cleared the Work, substantially as set forth.

11. In a machine of the class described, the combination With a numberof transverse rockshafts provided with cam parts, the punch- .stockscarrying shiftingefingers positioned to depress the cam parts on thedown movemovement of the punching-pattern and feed mechanism during thetime that one or more punches are in the Work, and means forautomatically reengaging the clutch-sleeve on the go-ahead side when thepunches are freed from the Work and the pressure on said cam partsrelaxed, substantially as set forth.

12. In a machine of the class described, the combination With a numberof transverse rockshafts each provided with a cam part, of the standardssecured to the rear ends of the rockshafts, a clutch shifting-rod, thepins carried thereby and in position to be contacted by said standardsin imparting an endwise movement to the shifting-rod, a counter-shaft,the companion clutch-pinions mounted on the counter-shaft and spacedapart, a clutch-sleeve located between said pinions on the countershaftand having both a rotary and a longitudinal movement thereon, and meansfor manually actuating said rock-shaft and transmitting an endwisemovement to the clutch shiftingrod in controlling the position of theclutch-sleeve, substantially as set forth.

13. In a machine of the class described, a Work-pattern properlysupported in place, means for imparting a reciprocating movement to thesame, a series of punches located underneath the path traveled by thepattern which is adapted to individually actuate such punches only asWill reproduce the pattern in the Work, substantially as set forth.

14. In a machine of the class described, a reciprocating carriage, aWork-pattern a templet mounted thereon, a series of punches operativelysupported in position and adapted to be actuated by the forward movementof the pattern the feed-shafts for moving the work through the machine,and means for momentarily arresting the motion of the pattern andfeed-rolls during the time that the punches are in the Work,substantially as set forth.

15. In a machine of the class described, a reciprocating carriage, aWork-pattern mounted thereon, means for transmitting motion to saidcarriage, comprising revoluble shafts, a number of sprockets mounted onsaid shafts and the chain belts connecting said sprockets, substantiallyas set forth.

16. In a machine of the class described, a reciprocating carriage, aWork-pattern having fingers projecting downward therefrom, a series ofpunches located underneath and in the path of the pattern and adapted tobe actuated by the contact of said fingers on the forward movement andmeans for elevatingthe pattern in avoiding contact with the punches onthe back movement, substantially as set forth.

1'7. In a machine of the class described, a reciprocating carriage, awork-pattern carried thereon, and means for elevating the carriage andpattern so that the latter may pass clear of an object on the returnmovement it -ame in contact with on the forward movement, substantiallyas set forth.

18. In a machine of the class described, a reciprocating carriage, awork-pattern mounted thereon, a crank-plate means for actuating thesame, and the operative connection between said crank-plate and carriagewhereby the latter is supported in elevated position for the returnmovement, substantially as set forth.

19. In a machine of the class described, the combination with companionupper and lower feed-shafts mounted in the front end of the machine, ofthe sprockets loosely mounted on the feed-shafts at opposite sides ofthe machine, the pawls pivoted to said sprockets, the ratchet-wheelsrigidly mounted on said shafts and in position to be engaged by saidpawls and the pattern-carriage, whereby a continuous forward movement isprovided for in discharging the work after the pattern-carriage isreversed for the return movement, substantially as set forth.

20. In a machine of the class described, the combination with atransverse shaft 19 located in the front part of the machine, of meansfor transmitting motion thereto, an upper feedshaft mounted in the frontend of the machine, means for transmitting motion from shaft 19 to thefeed-shaft. a sprocket loosely mounted thereon, a ratchet-wheel rigidlymounted on the feed-shaft, a pawl pivoted to said sprocket and engagingsaid ratchet, a lower feed-shaft receiving motion from the uppercompanion feed-shaft, a sprocket loosely mounted on the lowerfeed-shaft, a ratchet-wheel rigidly mounted thereon, a pawl pivoted tothe lastmentioned sprocket and in engagement with the ratchet on thelower feed-shaft, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY L. ZEIGLICR.

